Machine for channeling and trimming boot or shoe soles



0. T. STETSON.

RIMMING BOOT OR SHOE SOLES. Patented Aug. 29; 1882.

(No Model.)

MACHINEIE'OR OHANNELING AND T N0. 263,61

UNIT D STATES PATENT Garrett.

CHARLES T. STETSON, OF ROGKLAND, MASSACHUSETTS.

MACHINE FOR CHANNELING AND TRIMMING BO0T 0R SHOE SOLES.

SPECIFICATION forming part of Letters Patent No. 263,616, dated August29, 1882,

Application filed September 30, 1881.. (No model.)

inafter fully described, and specifically defined in the appendedclaims.

Figure 1 is a side elevation of that portion of a machine in which myimprovements are directly embodied. Fig. 2 is a reverse view orelevation of the same. Fig. 3 is a top or plan view thereof; and Fig. 4is a transverse vertical section taken on line A B, Figs. 1 and 2, andas looking to the right in the first and to the left in the last namedof said Figs.

1 and 2.

In said views, a represents the body or stock of this part of themachine, which body is usually formed U-shaped, as shown, and upon thelower arm is formed the stud b, by means of which it is attached to thesole-clamping and rotating part of the machine, which said devices maybe of any of the numerous and well-known-kinds. The sole-edge-trimmingknife h is secured in body a, by inserting its shank i in groovej(partly shown in Fig. 4) and clamping the same therein by cap 76 and itssecuring-screw Z. An arm or helve, c, having a head, 01, is pivoted tostock a at or near the apex of its curve by bolt y, as is shown in Figs.1, 2, 3. Upon said head is secured the channeling-knife 19, whoseangle-shank 0 extends downward from plate m, which is secured to saidhead by clamping-bolt n, which is threaded therein; and the groover t isby its body secured to said head by bolt 8, which passes through plateon and is threaded in said head. Asurfacing-gage, u, is secured to headcl on the side opposite to the channel-cutter p and groover t by aclamping-screw passing through a slot therein, to admit verticaladjustment, as shown in Fig. 2,while the vertical adj listing-screw f,threaded in lip e of head d, serves to secure said gage from verticaldisplacement when in use. For the purpose of vertically adjusting saidarm 0 by vibrating it on its pivot '1 and thereby elevating head (I andits described cutters, a short rock-shaft, w, is journaled in abearing-block, f, formed upon or secured beneath the upper arm of bodya, and upon one end of said shaft is socured the lever 12, while uponthe opposite end is formed the cam .70, which is arranged beneath saidarm 0, whereby the depression of the free end of lever 12 serves toelevate head d, whilethe spring 9, which at its rear end is secured tobody a, by screw d and near its middle by the adjusting-screw 6, servesby the force exerted by its free end upon arm 0 to constantly force saidarm downward with the requisite force. zontally elongated slot, 0, Fig.2, through which passes its pivotal and securing bolt 3 (threaded inbody (1,)- which is shown in said figure in transverse section. A pin,.2, is rigidly secured in said arm adjacent to slot 0, and the cam-levera is pivoted on said bolt 3 and is formed with a cam-like slot, 1),which is oblique to a circular path having said bolt y as its center,and with a radius equal to the distance between the centers of said bolt9 and pin 2. Consequently when the free end of lever a is depressed arm0 will be retracted, while the reverse movement of the lever willadvance said arm, whereby the path of the channeling-knifep and groovert may be varied and adjusted in their distance from the edge of thesole, either in their entire path therein or at the shank or any otherpart thereof, as may be desired; and by arranging a suitable cam orguide bar to actuate said lever a it may be automatically moved toregulate and adjust the position of the channel and thread grooverelatively to the edge of the sole in the different parts thereof, asbefore described.

As the records of the Patent Ofllice show numerous devices for clampingand rotating the sole while it is beingchanneled and grooved by devicesthereto attached and coactingtherewith, a further reference to suchclamping and rotating devices is not deemed necessary.

I claim as my invention 1. In a sole-edge fitting and channelingmachine, the combination, with an edge-trimming cutter, of achannel-cutter arranged to be ad- Arm 0 is formed with a horijusted inits distance from the edge-trimmer when both are operative, whereby thedistance of the channel from the sole-edge may be varied while both arebeing formed, substantially 5 as specified.

2. In a sole-edge fitting and channeling ma chine, the combination, withan ed ge-trimmin g cutter, of a channel-cutter arranged to be adjustedboth in its distance from the edge trim- IO mer and vertically inrelation to the plane of the sole when both said cutters are operative,whereby both the distance of the channel from the sole-edge and thedepth of the channel in the sole may be varied while both the sole-CHARLES T. STETSON.

Witnesses:

T. W. PORTER, IRA BRYANT.

